Technical description and composition of the TV SHARP LC-19LE510RU, type of panel and applicable modules. The composition of the modules.SHARP LED
Model: LC-19LE510RU
Chassis / Version: MB60 VESTEL (MSTAR)
Panel: LC185EXN (SD) (A1)
LED driver (backlight): integrated into PSU
PWM LED driver: NCP1579
MOSFET LED driver: MDS5652
Power Supply (PSU): 17PW80
PWM Power: ICE3BR0665J, SG6848
MainBoard: 17MB60-4 .1 V806
IC MainBoard: 25080BVS1G MX25L1005, LD1117AD, 9EBK 875 MP2012 (6), 64AL (6) FDC642P, K9F1208UOC, RT6293AH (8) RTA8283A, AZAD2102 (TPA3113), MP1484 (8)
Tuner: DTOS403LH122E
Control: RC1910
Technical Specifications LC-19LE510
SHARP LC-19LE510RU
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular SHARP LC-19LE510RU, it is advisable to start with a careful external examination of internal and external elements. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
In cases when the SHARP LC-19LE510RU TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the 17PW80 power supply module is most likely faulty or missing processor power on the motherboard (a typical defect of some SHARP TVs). In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors AO4842 (8), FDC642P (6) for the probability of an avalanche thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller G1143LOP (8) ICE3BR0665J , CAT7581 (8), which can only be checked by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
Sometimes the SHARP LC-19LE510RU TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the LC185EXN (SD) (A1) panel, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
The motherboard 17MB60-4.1 V806 must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - 25080BVS1G MX25L1005, LD1117AD, 9EBK 875 MP2012 (6), 64AL (6) FDC642P, K9F1208UOC, RT6293AH (8) RTA8283A, AZAD2102 (TPA3113) MP1484 (8). In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If the TV works normally from external devices, but does not tune into television channels, the DTOS403LH122E tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Attention! For users and owners of LC-19LE510RU TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
Schematic diagram --------------> Sharp LC-19LE510E, LC-19LE510K, LC-22LE510E, LC-22LE510K, LC-24LE510E, LC-24LE510K, LC-19LE510E/K, LC-22LE510E/K, LC-24LE510E/K, LC-22AD12E, LC-22LE22E, LC-32LE510E, LC-40LE510E, LC-32SH130E, LC-32SH130K, LC-32SH340E. chassis Vestel MB60
LC185EXN (SC)(A1) -------------> LG Panel specification LC185EXN (SC)(A1)
Schematic diagram -----------> Power Vestel 17PW80 Schematic diagram
Service Manual with Schematic Diagram 121 pages 2006 models LC-22AD12E, LC-22LE22E, LC-32LE510E, LC-40LE510E, LC-32SH130E, LC-32SH130K, LC-32SH340E, LC-19LE510E, LC-19LE510K, LC- 22LE510E, LC-22LE510K, LC-24LE510E, LC-24LE510K, LC-19LE510E, LC-19LE510EK, LC-22LE510E, LC-22LE510EK, LC-24LE510E, LC-24LE510EK - 17MB60 CHASSIS.
The appearance of the MainBoard 17MB60-4 is shown in the figure below:The 17MB60-4 motherboard is made using the MSD9WB7PX-2 processor, combined with a scaler. For its work, two microchips of external random access memory (DDR) HY5PS121621C and read-only memory (ROM) NAND512-A are used. To ensure processor power, stabilizers 1.2V, 2.5V, 3.3V are used. For DDR, the voltage is 1.8V, for the power of NAND 3.3V. It is advisable to start the repair by checking the power supply of the standby mode 3.3V. Further, in the operating mode, it is necessary to check the operability of all linear stabilizers and voltage converters. If there is a backlight and no image, the power of the LCD panel 5V or 12V, depending on the type of panel used, can be measured directly on the LVDS connector. A typical malfunction is a NAND ROM software failure. At the same time, the TV does not turn on and the indicators on the panel blink. It is updated via the USB port if the software of the SPI FLASH chip in which the bootloader is located is not damaged, or if there is a mboot.bin file on the media, which can be used as standard SPI FLASH content.
17MB60-4 can be used in TVs:
SHARP LC-19LE510RU (Panel LC185EXN (SD)(A1)), SHARP LC-22LE510RU (Panel 22 "), SHARP LC-32LE510RU (Panel LC320EUN SD V1), SHARP LC-32SH130E (Panel LC320WXN / 720p HD), SHARP LC-32SH340 LC-32SH340E (Panel LC320WUN (SC)(B1) ), TOSHIBA 19EL833R (Panel V185B1-LE2 LED), TOSHIBA 26LD833F (Panel LC260EXN (SD)(A3)), TOSHIBA 32DL833R 32DL834R (Panel LC320EXN SD A2 led).
The appearance of the power supply
Main features of the SHARP LC-19LE510RU device:
Installed matrix (LED-panel) LC185EXN (SD) (A1).
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the NCP1579 PWM controller. As power elements of the LED driver, keys of the MDS5652 type are used.
The necessary supply voltages for all nodes of the SHARP LC-19LE510RU TV are generated by the 17PW80 power module, or its analogs using ICE3BR0665J, SG6848 microcircuits.
MainBoard - the main board (motherboard) is a 17MB60-4 module, using chips 25080BVS1G MX25L1005, LD1117AD, 9EBK 875 MP2012 (6), 64AL (6) FDC642P, K9F1208UOC, RT6293AH (8) RTA8283A, AZAD2112 (TPA) (8) and others.
The DTOS403LH122E tuner provides TV reception and channel tuning.
Information from an alternative source:
SHARP LC-19LE510RU Chassis MB60
Panel Type (Matrix): LC185EXN (SD) (A1)
Motherboard: 17MB60-4.1, W971GG6JB-18, RT8293AH, 25L8006E, Tuner: DTOS403LH122E
PSU: 17PW80, ISE3BR0665J, MDS5652, NCP1579
Remote control: RC1910
Additional technical information about the panel:
Brand: LG Display
Model: LC185EXN-SDA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 6.0 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V